Gaeland b



(N0 Model.)

G. B. ST. JOHN.

PLOW.

Patented Apr. 1

N. PETERS. Pnnlo-mmm hcr. Washiuglan. ac.

PATENT tries.

GARLAND 13. ST. JOHN, OF CEDAR RAPIDS, IOWA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 296,246, dated April 3., 1884:.

Application died October 23, 1853.

I?) all wi'wmzit may concern.-

Be it known that I, GARLAND B. Sr. J OHN, a citizen of the United States, residing at Gedar Rapids, in the county of Linn and State of Iowa, have invented certain new and use ful Improvements in Plow's, of which the following is a specification.

The object of this invention is to simplify and cheapen the construction, improve the operation, and lessen the draft of a plow by means of the following-described improvements.

The invention consists in so constructing and arranging the sulky-truck that the weight of the rider shall counterbalance the weight of the plowand assist in raising it out of the ground 5 in improved means for attaching the plow-beam to the lifting-bail; in substituting for the ordinary landside a rigid blade-colter, so placed as to out the soil for the furrow following the one being turned, and in novel devices for attaching the mold-board and share to the beam and to each other, all of which will be more fully hereinafter described.

In the accompanying drawings, Figure 1 represents a side elevation of the plow mount ed upon a truck with the central portion of the wheel removed to show the lifting device; Fig. 2, a rear View of the plow detached, showing the position of the colter-landside and the frog for fastening the mold-board and share to the beam Figs. 3 and 4, certain ways of adjusting the colter vertically and laterally, and Fig. 5 the device for joining the mold-board and share. Fig. 6 represents a sectional view of the levers and bail-eonnections used in raising and lowering the plow. Fig. 7 is a modified form of the clamp for se curing the plow to the frame.

Similar letters of reference indicate corresponding parts.

On suitable carryingwheels, A, is mounted a plow, E, by means of a bail, O, pivoted to the sides of an arch, 13, having axles a at or near the lower extremity. The upper part of the arch extends forward of a vertical line drawn through said axles, and to this upper portion is hinged the horizontal bar G, forming a part of the frame-work to which the tongueH is secured. v The seat I is also at- (No model.)

tached to this framework by asuitable spring.

It will be seen that all the weight of the truck,

except the whee1s,and also that of the driver, is forward of the pivotal points of the axles a, and therefore tends to depress the parts on that side. To utilize this overhanging weight to counterbalance that of the plow behind, the bail O is extended forward of its pivot, and the end of bar G back of its pivot, and the ends of these parts are connected by a connecting-rod, Z). The end of the tongue being supported, it will be seen that as the seat and truck settle the forward end of the bail will be depressed, and the rear will be elevated, and with it the plow, as shown by the dotted linesin Fig. 1. The forward and light- 'er end of the plow is prevented from going higher than the rear by the arch l3; and the plow maybe thrown out of the horizontal, even, if required. To regulate and control theliftin g and depressing of the plow, a lever, F, is pivotedto the side of the arch at apoint about midway between its upper and lower extremities, and to its extendedend another rod, 0, is hinged and connects with the. bar G, above mentioned. It will be apparent that this connection may be modified considerably. Thus the forward end of the bail G maybe still further extended and the rod 0 connected therewith, instead of the bar above; or, by making provision for their respective deviations from a straight line, the end of the lever may be connected directly with the principal connecting-rod b. The lever is held in position by a catch operating in the segmental rack f.

The plow is hinged to the bail by means of the clamp-iron D, which is secured to the beam by means of a clip in such manner that the beam shall form one side of the grip on the bail O, and the clamp the other side. The same results are attained by the use of the clamps bolted to the side of the beam, their forward prongs gripping the bail, as shown in Fig. 7 the object being to secure the plow firmly to place without the use of complicated hinges. V

To do away with much of the friction due to the usual long landside, I substitute for it a comparatively narrow blade corresponding to the ordinary colter, and place it at the landward side of the plow at a proper distance therefrom to cut the soil for the furrow following the one being turned. It thus serves the double purpose of a colter and a landside.

The particular manner of attaching it to the plow will vary according to the style of the plow or the taste of the manufacturer. I regard the device shown as one of the simplest and best for the purpose. A portion of the clamp-iron D is extended outward in a somewhat curved form, and to the end of it the colter is secured by a bolt or clip. Provision is also made for vertical and lateral adjustment. To secure the former, the colter. may be fastened by a clip, as in Fig. 4, in which case the adjustment may be made by loosening the clip and sliding the colter to the proper place. IVhen a bolt is used, either the colter or the end of the arm D is slotted. Similar means are provided for lateral adjustment, as shown in Fig. 4.. The colter may be provided with a small wing or share to act as a jointer where circumstances require it. It is found that on account of its revolving motion a rolling colter will ride over stones or hard obstructions in the ground, tending to throw the plow out of work, and also seriously battering the edge of the blade; hence the need of some other devices that can be made to do that work of holding the plow laterally, and at the same time to cut a line for the plow to follow the succeeding furrow. WVhen stony land is to be plowed with a plow supplied with such devices, the ordinary landside is dispensed with It will readily appear that this form of colter will work under loose stones in the ground, and the batter on the edges is much less than when the whole weight of the machine is made to ride over them. I11 my Patent No. 287,336, for a rolling colter set a furrow in advance in this manner, I made no provision to do this work successfully. While I am well aware that a standing-blade colter has long been used in front of the plow, I am not -aware that it has ever been before placed in the manner here described to do the landside work. The breadth of the invention will be realized when it is known that this device will perform the work, as above described, in vast territory where the rolling colter becomes useless.

The manner in which the mold-board and share are fastened to the beam is shown in Fig. 2. The device consists in a triangular frog, with one side turned at right angles to the surface of the plate, and to this side the beam is bolted. The other side is obtusely angled and curved to fit the convexity of the mold-board and share, to which it is similarly secured. It affords a cheap and simple means for fastening the working parts of the plow to the beam.

An improved method of joining the moldboard and share, and particularly the fore parts of. the same, is shown in Fig. 5. The

on the back of the forward end of the share.

extending a suitable distance beyond the mold-board line of the same, and such a distan'ce along said line as circumstances may require, and is welded to the share, to the mold-board line, or to within a short distance therefrom. This serves tostrengthen the share along its front edge, and also makes a strong and accurate support for the moldboard. By the use of this device and the frog above described, or either of them, the parts may be fitted together, ground, polished, and attached to the plow without the removal of any bolts.

I am aware that heretofore in a plow having a landside an inside angle-plate has been fastened to the mold-board and share, and I do not claim any such structure.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. I11 a plow, the arch B and tongue-iron G, pivoted at e, in combination with lever F, bail G,and connections b and c, or their equivalents, substantially in the.manner and for the purposes'set forth.

2. In a wheel-plow, the clamp-iron D, pro vided with an arm, D, and a groove, D", and

adapted to the two uses of securing the plow- I beam to the bail and furnishing a support for a colter, substantially as'described.

3. The combination, with a plow, E, and bail O. of a clamp-iron, D, havingalaterallyextended arm, with a colter-blade, which is rigidly but adj ustably secured to the outer end of said arm, and adapted to operate substantially as described.

4. The combination,withawheel-plow, of a clamp-iron, D, provided with an arm, D,and a groove,of a colter rigidly secured to said arm D, and means for securing the clamp-iron to the plow-beam, substantially as described.

5. The combination of theplow E, the clampiron, and its extension D, pivotally secured to said bail and to the plow-beam, and a colter rigidly secured to the said extension and inclining downward and forward, substantially as described. Y

6. In a plow without a landside, the combination, with mold-board and share, of a strengthening plate, 1', secured under and along the front edge of the share and projecting upward under the mold-board, and adapted to form a seat and be bolted to said moldboard.

In testimony whereof I affix my signature in WVitnesses:

J. M. ST. JOHN, S. M. ENnIoorT. 

